What is the answer for these questions

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

What sums are equal to 6/12? choose all answers that are correct a.6/12+6/12+6/12+6/12+6/12+6/12 b.2/12+1/12+1/12+2/12 c.5/12+1/12 d.1/12+1/12+1/12+3/12 plz : )

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.